PartsTable TECHNICAL DATA SHEET
NSN 4820-01-457-4569Government record, cited

Stem, Fluid Valve4820-01-457-4569

NSN 4820-01-457-4569 · NIIN 014574569 · Part number 201-A-1IN-PC4
Richards Industries Value Group Marwin Ball Value Div · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 8T690
Government record, cited
NSN 4820-01-457-4569 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-457-4569. Manufacturer of record part number: 201-A-1IN-PC4.
Also searched as  4820-01-457-4569 · 4820014574569 · NIIN 014574569 · 01-457-4569 · FSC 4820 Valves, Nonpowered · CAGE 8T690 · 201-A-1IN-PC4
Nearby stock numbers  ·
Features
  • Stem,fluid Valve — FSC 4820
  • Valve Type for Which Designed: BALL
  • Stem Actuating End Type: THREADED EXTERNALLY
  • Valve Size for Which Designed: 1.000 INCHES IN
  • Material: STEEL COMP 316
  • 1 manufacturer part number on file
  • Manufacturer of record: Richards Industries Value Group Marwin Ball Value Div
Identification
  • NSN: 4820-01-457-4569
  • NIIN: 014574569
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 201-A-1IN-PC4
  • Manufacturer: Richards Industries Value Group Marwin Ball Value Div
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-457-4569, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Richards Industries Value Group Marwin Ball Value Div. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-457-4569
Primary Part Number201-A-1IN-PC4
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerRichards Industries Value Group Marwin Ball Value Div
StatusACTIVE
Valve Type for Which DesignedBALL
Stem Actuating End TypeTHREADED EXTERNALLY
Valve Size for Which Designed1.000 INCHES IN
MaterialSTEEL COMP 316
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
201-A-1IN-PC4 PRIMARY Richards Industries Value Group Marwin Ball Value Div (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Related Parts in Valves
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
8171E-1/4HS2
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
D559A3M2
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-457-4569?

NSN 4820-01-457-4569 is a Stem,fluid Valve, manufactured by Richards Industries Value Group Marwin Ball Value Div, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-457-4569?

NSN 4820-01-457-4569 has 1 manufacturer part number on file: 201-A-1IN-PC4 (Richards Industries Value Group Marwin Ball Value Div).

What are the specifications of 201-A-1IN-PC4?

Key specifications for 201-A-1IN-PC4: Valve Type for Which Designed: BALL; Stem Actuating End Type: THREADED EXTERNALLY; Valve Size for Which Designed: 1.000 INCHES IN; End Item Identification: 170 FT PATROL COASTAL(PC-1) CLASS SHIPS FT. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-457-4569 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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